similar to: Survival Analysis

Displaying 20 results from an estimated 500 matches similar to: "Survival Analysis"

2010 Aug 09
2
recurrent events
Hello, I have a cohort with approx 1,200 patients at the ages of 30-65 that had their first myocardial infarction during 1992: · They were in a follow up until 2005. · About 400 of them died during this period of time (right censored) · Each one of them had up to 4 mi recurrent events. I am using the semi-parametric model in order to assess the relationship of
2010 Nov 13
0
using if statment and loops to create data layout of recurrent events
Hi , I have a data set with recurrence time (up to four) of myocardial infarction (MI). Part of the file is showing below: Num1 Trt Sex Time T1 T2 T3 T4 1011 1 1 9 1211 0 1 59 3020 1 2 14 3 1245 0 1 18 12 16 3069 1 2 26 6 12 13 2051 0 1 53 3 15 46 51 The data consist of the following eight variables: Num1 , patient number Trt, treatment group (1=placebo and 2=drug) Sex,
2013 Mar 05
0
Agreement and Consistency of 2D data
Hi, I have two different imaging modalities (for the identification of areas of infarcted myocardium) that I need to compare regarding agreement and consistency. However, I don't think that methods like Cohen's Kappa, PCC, Bland-Altmann or ICC are sufficient here as there is not just a pairwise but also a spatial relationship between measured data points. For example if the results of the
2006 Feb 21
0
Calculate R-Square for existing predictors
Hello everybody, in the past months I have developed a model to predict the mortality rate of Acute Myocardial Infarction Patients. My evaluation was mainly based on ROC Curves etc. I have now been asked to calculate the R-Square of my model, another existing model in regards to the actual mortality rate. So far I have only found a function calculating a regression, and then the R-Square of the
2010 Sep 19
4
Create Dot Chart
Hello everyone... I would like to create a chart (see below), how can I do it with R? Any help, suggestion, samples... will be greatly appreciated. Thanks... Avi http://r.789695.n4.nabble.com/file/n2545921/DotChart.jpg -- View this message in context: http://r.789695.n4.nabble.com/Create-Dot-Chart-tp2545921p2545921.html Sent from the R help mailing list archive at Nabble.com.
2008 Mar 07
0
How to do a time-stratified case-crossover analysis for air pollution data?
Dear Experts, I am trying to do a time-stratified case-crossover analysis on air pollution data and number of myocardial infarctions. In order to avoid model selection bias, I started with a simple simulation. I'm still not sure if my simulation is right. But the results I get from the "ts-case-crossover" are much more variable than those from a glm. Is this: a. Due to
2008 Mar 07
0
How to do a time-stratified case-crossover analysis for air pollution data? Unformatted text-version, with an additional note
Dear Experts, I am trying to do a time-stratified case-crossover analysis on air pollution data and number of myocardial infarctions. In order to avoid model selection bias, I started with a simple simulation. I'm still not sure if my simulation is right. But the results I get from the "ts-case-crossover" are much more variable than those from a glm. Is this: a. Due to the simple
2018 Feb 26
0
Ubiquiti Model UAP-AC-PRO
On 02/15/2018 08:41 PM, Gregory P. Ennis wrote: > It looks like the setup requires the use of software; they have some > packages that are ready made for Ubuntu and Debian, but not RedHat > > https://www.ubnt.com/download/unifi/unifi-ap-ac-pro > > Have any of you tried or succeeded in installation this on Centos 7.4? I have several Ubiquiti UniFi access points (nitpick:
2016 Aug 08
0
New package uaparserjs 0.1.0 - Slice up browser user agent strings
I keep forgetting I can announce things here. [Insert witty/standard boilerplate introductory verbiage here] CRAN: <https://cran.rstudio.com/web/packages/uaparserjs/index.html> GitHub: <https://github.com/hrbrmstr/uaparserjs> Until Oliver and/or I figure out a way to get uap-r <https://github.com/ua-parser/uap-r> working w/o Boost, this package provides a way to parse browser
2016 Aug 08
0
New package uaparserjs 0.1.0 - Slice up browser user agent strings
I keep forgetting I can announce things here. [Insert witty/standard boilerplate introductory verbiage here] CRAN: <https://cran.rstudio.com/web/packages/uaparserjs/index.html> GitHub: <https://github.com/hrbrmstr/uaparserjs> Until Oliver and/or I figure out a way to get uap-r <https://github.com/ua-parser/uap-r> working w/o Boost, this package provides a way to parse browser
2011 Jan 20
4
subsets
Dear R people Could you please help. Basically, there are two variables in my data set. Each patient ('id') may have one or more diseases ('diagnosis'). It looks like id diagnosis 1 ah 2 ah 2 ihd 2 im 3 ah 3 stroke 4 ah 4 ihd 4 angina 5 ihd .............. Q: How to make three data sets: 1. Patients with ah and ihd 2. Patients with ah but no ihd 3. Patients with ihd but no
2008 Sep 30
1
DTrace MFC broke kldstat(2) on RELENG_7
Hi, I recently noticed that kldstat(8) started to dump core for me on RELENG_7. I traced the problem down to kldstat(2). r182231 (DTrace MFC) introduced a new version of kld_file_stat struct and added some code to support the old version of the structure in kldstat(). In the new code the old structure is known as kld_file_stat_1. Unfortunately there's a bug in this code: kldstat() copies
1998 Mar 12
2
FreeBSD Security Advisory: FreeBSD-SA-98:02.mmap
-----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SA-98:02 Security Advisory FreeBSD, Inc. Topic: security compromise via mmap Category: core Module: kernel Announced: 1998-03-12 Affects:
2004 Sep 29
5
Kernel-loadable Root Kits
Thanks for the module, I think its a good idea to commit it to FreeBSD for a few reasons: 1) Some folks just prefer more static kernels. 2) Securelevel is a great thing, but can be a pain to do upgrades around remotely. [A lot of folks use FreeBSD simply because its a breeze to run remotely]. 3) Until someone writes code to add modules to a kernel via /dev/mem and releases it to the script
2003 Aug 11
1
Kernel build fails (RELENG_4_5)
Hi Jacques, list, On Mon, Aug 11, 2003 at 09:09:18AM +0100, Bruce M Simpson wrote: > cc -c -O -pipe -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -fformat-extensions -ansi -g -nostdinc -I- -I. -I/usr/src/sys -I/usr/src/sys/../include -I/usr/src/sys/contrib/ipfilter -D_KERNEL -include opt_global.h -elf
2003 May 13
1
Kernel panic on FreeBSD 4.8-STABLE
Hi, I need some help to understand a backtrace. The situation is as follows: A diskless system acting as a kind of bandwithshaping firewall with both ipfw2 and ipfilter active at the same time. Ipfilter is used for port adress translation. The system panics about once every 6 hours. The network load is very low, only one Windows XP machine is connected but not actively used. I added a disk
2003 Apr 22
0
kmem_map too small: 260046848 total allocated
After about a day and a half or so of uptime, I'm getting the aforementioned panic on the server ... better then having it hang solid, but right now I'm not sure if this is replacing it, or just one being triggered earlier then the other ... First scan through Google, I came across some posts talking about NMBCLUSTERS ... since its at the same settings as my other server (the default)
2007 Mar 24
1
Binding an ip address to an username with SQUID passwod file
Hi List, I want to bind an ip address to a username with squid by using squid password file. I am using ncsa_auth programme. Below are line that I have added to squid.conf file. auth_param basic program /usr/lib/squid/ncsa_auth /etc/squid/squid_passwd auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours auth_param basic
2003 Jun 23
1
Processes hung in 'inode' state ...
Not sure what all to do, but doing a 'gdb -k kernel.debug /dev/mem', a backtrack on one of the processes shows ... server has been up 12 days now, and running a June 8th kernel ... #0 0x20f4f0 in ?? () (kgdb) proc 67258 (kgdb) bt #0 mi_switch () at machine/globals.h:119 #1 0x8014a1f9 in tsleep (ident=0x8a3d2200, priority=8, wmesg=0x80263d4a "inode", timo=0) at
2003 Jul 01
2
Okay, looks like I might have a *good* one here ... inode hang
neptune# ps -M vmcore.1 -N kernel.debug -axl | grep inode | wc -l 961 and I have a vmcore to work on here !! :) (kgdb) proc 99643 (kgdb) bt #0 mi_switch () at machine/globals.h:119 #1 0x8014a1f9 in tsleep (ident=0x8a4ef600, priority=8, wmesg=0x80263d4a "inode", timo=0) at /usr/src/sys/kern/kern_synch.c:479 #2 0x80141507 in acquire (lkp=0x8a4ef600, extflags=16777280,